Counterbalancing sash for main window sashes



G. W. LANCASTER.

COUNTERBALANCING SASH FOR MAIN wmoow SASHES.

APPLICATION FILED SEPT. 7, 1920- Patented Feb. 21, 1-922.

GEORGE WL LANCASTEIR, OF RICHMOND, VIRGINIA, ASSIGNOR To rnnrncrnn .wnn

DOW coMPANm'or n'rcrnviolvn, VIRGINIA, A conronnrroiv.

COUNTERBALANCING SASH FOR MAIN wnvnow'sesnns.

Specification of Letters Patent. V Patented F b 21 1922 Application filed September '7, 1920. SeriaINo. 408,629.

To all whom it may concern:

Be it known that GEORGE W. LANCASTER, a citizen of the United States of America, residing at' Richmond, Virginia, has invented anew and useful Counterbalancing Sash for MainWindow Sashes, of which the following isa specification.

This invention relates to an improved window sash and anobject is to provide a window sash especially adapted for use in con- 4 nection with ventilating windows wherein counter-balancing ventilating window sashes are necessary. as in the co-pending applications filed August 2, 1919 and February 20, 1920'in the name of George W. Lancaster, Serial Numbers 314,910 and360,151 respectively. I

"Another object is-to provide a window.

sash wherein a sheet metal frame is eInployed'engaging certain of the edges of the pane of glass for instance the bottom and end edges so that the ends of the sash frame may ride between the usual guides or partingstrips of window frames such as disclosed in said co-pendingapplications and therebyiprotecting the glass.

Still another'object is to provide asheet metal channel sash frame which is very light, efficient and practical and which can bevery'cheaply made and sold at a reasonable profit. V V

' Still another object resides in the provision of a sheet'm'etal channel sash frame having its lower rail provided with a flange extending inwardly so as to contact with an adjacent lower railof a similar channel sash frame, or with a bar connecting the upper ends of the sash frame, thereby acting to excludethe air from the interior of the room when certain of the sashes are open and when the sashes are entirely closed as in the copending application filed August 2, 1919, Serial Number 314,910. In order to accomplish this result it is the aim to employ a plurality of sash frames as in said co-pending application 314,910 so as to regulate the circulation of air through the window.

"A further object is the provision of a sheet metal channel sash frame provided with a connecting bar at the upper, portion connecting the upper portions of the ends of the sash frame so as to be engaged. by the flange at the bottom of an adjacent sash frame as previously stated for'excluding the or lugs to which the sash cords may be connected so as signed to connect with certain other similar sashes so that sashes of this character may be'counter-balanced as in said co-pending application for the purpose ofregulating the circulation of air into the interior of a room.

While the design and construction at present illustrated and set forth is deemed preferable, it is obviousthat as a result of a reduction of the invention to a more practical form for commercial purposes, the invention may be susceptible of'changes, and the right to these changes is claimed, pro vided they are comprehended within the scope of what is claimed.

The invention comprises further features and combination of parts, as will be hereinafter set forth, shown in the drawings and claimed.

In the drawings Figure l is a view. in perspective of the improved sheetmetal channel sash frame showing the same bounding the edges of a pane of glass,

Figure 2 is a perspective view of the sash frame showing the opposite sides thereof,

Figure 3 is a detail View of a pair of sash frames showing the flanges at the bottoms of the frames, showing one of the flanges as cooperating with the connecting bar at the top of an adjacent sash frame,

Figure 4 is a sectional view through a plurality of channel sash frames showing them open and showing the flanges cooperating with the bottoms of adjacent sash frames,

Figure 5 is a detail perspective view of an elongated channel piece fromwhich the sash frame may be constructed,

Figure 6 is a detail view showing a con necting bar 10 as being integrally connected with the side stiles or end pieces of the sash frame. I

Referring to the drawings, 1 designates a sash frame which may be any suitable shape and configuration or any proportions preferably rectangular as shown and which is constructed from a channel piece of sheet ,to support the sash frame, it, being the alm that the sash cords are de metal. In fact, the sash frame may be con structed of sheet aluminum or preferably sheet steel, though not necessarily, for it is obvious that brass or nickel plated metal may be used. However, sheet steel has been found to be most desirable for this purpose.

The sheet metal channel frame may be constructed from a length of channel material as shown in Figure 5 which may be of various lengths therefore it is possible to construct a sash frame of any dimensions. In order to construct the sash frame the elongated channel such as shown in Figure 5 may be cut the requisite length so as to provide the end and bottom pieces 2 and 3 of the frame. The sides of the elongated channel may then be provided with V- shaped cuts as indicated at 4 in Figure 5 after which the ends 2 may be bent at right-angles to the lower rail 3 of the sash frame and the edges of the V-shaped cuts then fastened together in any suitable manner preferably by spot-welding or the like as indicated at 5.

V The channel in Figure 5 may have one side provided with a flange 6 which is designed to cooperate with the outer face of the lower rail of an adjacent sash when a plurality of' sashes are in open position as shown in Figure 4. This flange 6 may form an integral part of the channel or it may be attached by welding or otherwise to one side of the channel, as at 6 after the end pieces 2 have been bent up into position. Should the flange be formed as an integral part of the channel, the channel may be constructed in lengths corresponding to different dimensions of windows. In other words, the channel may be constructed as an article of manufacture in other words, can be in the form as shown in Figure 5 after which the sash frame may be formed from such an article. In this instance, the end portions of the end pieces 2 are provided with extensions 7 which may be bent as shown in Figures 1 and 2 and provided with openings 8 for the reception of sash cords which may connect to adjacent sash frames so that the sash frames may be counter-balanced andmounted in window frames as in the copending applications. These extensions or tongues 7 with the sash cords connected thereto not only act as means for suspending the sash frame from the cord but also act to prevent upward movement of the pane of glass 9 which is mounted in the channel of the frame as the tongues or extensions overlie the upper edge of the glass. The upper portions of the end pieces 2 of the sash frame are connected by a cross bar 10 in order to hold the end pieces of the frame elatively rigid not only with relation to each other, but also with relation to the lower or bottom piece of the sash frame.

. The connecting bar 10 is designed to be from entering the room when all of a plu- V ralit of sash frames are closed. Furthermore, the connecting bar 10 assures rigidity between the end pieces of the sash frame and may be connected to the end pieces by any suitable means preferably spot-welding or the like and if necessary may be constructed as an integral part of the end pieces and in this case the sash framemay be especially constructed instead of from an article of manufacture as in Figure 5, namely the channel strip. Figure 2 shows the connecting bar 10 asbeing connected by spot welding while inFigure 6 the connecting barlO is made as an integral part of the sash frame.

The invention having been'set forth, what is claimed as new and useful is 1. In improvements in a window structure,'a main sash, an auxiliary sash movable in said main sash and comprising a channel metallic frame which consists of a lower rail and two side or end stiles or rails having channels, the upper ends of the stiles having overbent lugs through which sash cords are adapted to be connected, and a pane engaging the channels of the side stiles and the lower rails.

2. As a new article of manufacture, a sash comprising a frame consisting of a lower channel rail and two side stiles having channels, the pane engaging the channels of the side stiles and the channel of the lower rail, the upper ends of the side stiles having ears overlyin the upper edge of the pane and adapted for connection. with sash cords, said ear acting to prevent upward movement of the pane. U I

3. As a new article of manufacture, a sash comprising a frame consisting of a lower channel railand two side stiles having channels, the pane engaging the channels of the side stiles and the channel of the lower rail, the upper ends of the side stiles having ears overlying the upper edge of the pane and adapted for connection with said cords, said ear acting to prevent upward movement of the pane, the bar connecting the upper portions of the side stiles at a point adjacent the upper edge ofv the pane thereby acting to hold the pane in position and at the same time relatively reinforcing the side stiles.

at. A window sash comprising a sheet metal channel frame, a pane mounted therein, the upper ends of the side stiles of the frame having flexible sash cord attaching terminals engaging over the edge of the pane to removably hold the pane in position. 5. As a new article of manufacture, a channeled strip the sides of the channeled strip having V-shaped cuts whereby the end portions of the channel strip beyond the cuts may be bent and the side of the bent pertions mitered, the portion of the channel witnesses, the inventors signature is herestrip between the cuts having a lateral elonunto affixed. gated flange, the extremitiesot' the end portions beyond the cuts terminating in tongues GEORGE LANCASTER 5 adapted to be bent to form sash cord attach- Witnesses:

ing means. J. C. DUKE In witness whereof, in the presence of two WM. 0. MOiIOELLE. 

